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          LV05-02-linux内核-02-NXP提供的内核
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<details class="folding-tag" blue><summary> 点击查看使用工具及版本 </summary>
              <div class='content'>
              <table>    <tr>        <td align="center" width=150px>Windows版本</td>        <td align="left">windows11</td>    </tr>    <tr>        <td align="center">Ubuntu版本</td>        <td align="left">Ubuntu16.04的64位版本</td>      </tr>    <tr>        <td align="center">VMware® Workstation 16 Pro</td>        <td align="left">16.2.3 build-19376536</td>      </tr>    <tr>        <td align="center">终端软件</td>        <td align="left">MobaXterm(Professional Edition v23.0 Build 5042 (license))</td>      </tr>    <tr>        <td align="center">Linux开发板</td>        <td align="left">正点原子 i.MX6ULL Linux 阿尔法开发板</td>      </tr>    <tr>        <td align="center">uboot</td>        <td align="left">NXP官方提供的uboot，NXP提供的版本为uboot-imx-rel_imx_4.1.15_2.1.0_ga(使用的uboot版本为U-Boot 2016.03)</td>      </tr>    <tr>        <td align="center">linux内核</td>        <td align="left">linux-4.15(NXP官方提供)</td>      </tr>    <tr>        <td align="center">Win32DiskImager</td>        <td align="left">Win32DiskImager v1.0</td>      </tr></table>
              </div>
            </details>

<details class="folding-tag" blue><summary> 点击查看本文参考资料 </summary>
              <div class='content'>
              <table>    <tr>        <td align="center">分类</td>        <td align="center">网址</td>        <td align="center">说明</td>    </tr>    <tr>        <td align="center" rowspan="5">官方网站</td>        <td align="left"><a href="https://www.arm.com/" target="_blank">https://www.arm.com/</a></td>        <td align="left">ARM官方网站，在这里我们可以找到Cotex-Mx以及ARMVx的一些文档</td>    </tr>    <tr>        <td align="left"><a href="https://www.nxp.com.cn/" target="_blank">https://www.nxp.com.cn/ </a></td>        <td align="left">NXP官方网站</td>    </tr>    <tr>        <td align="left"><a href="https://www.nxpic.org.cn/" target="_blank">https://www.nxpic.org.cn/</a></td><td align="left">NXP 官方社区</td>    </tr>    <tr>        <td align="left"><a href="https://u-boot.readthedocs.io/en/latest/" target="_blank">https://u-boot.readthedocs.io/en/latest/</a></td><td align="left">u-boot官网</td>    </tr>    <tr>        <td align="left"><a href="https://www.kernel.org/" target="_blank">https://www.kernel.org/</a></td><td align="left">linux内核官网</td>    </tr></table>
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<details class="folding-tag" blue><summary> 点击查看相关文件下载 </summary>
              <div class='content'>
              <table>    <tr>        <td align="center">分类</td>        <td align="center">网址</td>        <td align="center">说明</td>    </tr>    <tr>        <td align="center" rowspan="4">NXP</td>        <td align="left"><a href="https://github.com/nxp-imx" target="_blank">https://github.com/nxp-imx</a></td>        <td align="left">NXP imx开发资源GitHub组织，里边会有u-boot和linux内核的仓库</td>    </tr>    <tr>        <td align="left"><a href="https://elixir.bootlin.com/linux/latest/source" target="_blank">https://elixir.bootlin.com/linux/latest/source</a></td>        <td align="left">在线阅读linux kernel源码</td>    </tr>    <tr>        <td align="left"><a href="https://github.com/nxp-imx/linux-imx/releases/tag/rel_imx_4.1.15_2.1.0_ga" target="_blank">nxp-imx/linux-imx/releases/tag/rel_imx_4.1.15_2.1.0_ga</a></td>        <td align="left">NXP linux内核仓库tags中的rel_imx_4.1.15_2.1.0_ga</td>    </tr>    <tr>        <td align="left"><a href="https://github.com/nxp-imx/uboot-imx/releases/tag/rel_imx_4.1.15_2.1.0_ga" target="_blank">nxp-imx/uboot-imx/releases/tag/rel_imx_4.1.15_2.1.0_ga</a></td>        <td align="left">NXP u-boot仓库tags中的rel_imx_4.1.15_2.1.0_ga</td>    </tr>    <tr>        <td align="center" rowspan="2">I.MX6ULL</td>        <td align="left"><a href="https://www.nxp.com.cn/docs/en/data-sheet/IMX6ULLIEC.pdf" target="_blank">i.MX 6ULL Applications Processors for Industrial Products</a></td>        <td align="left">I.MX6ULL 芯片手册（datasheet，可以在线查看）</td>    </tr>    <tr>        <td align="left"><a href="https://www.nxp.com.cn/webapp/Download?colCode=IMX6ULLRM&lang_cd=zh" target="_blank">i.MX 6ULL Applications ProcessorReference Manual</a></td>        <td align="left">I.MX6ULL 参考手册（下载后才能查看，需要登录NXP官网）</td>    </tr></table>
              </div>
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<h1 id="一、简介"><a href="#一、简介" class="headerlink" title="一、简介"></a><font size=3>一、简介</font></h1><h2 id="1-获取NXP内核源码"><a href="#1-获取NXP内核源码" class="headerlink" title="1. 获取NXP内核源码"></a><font size=3>1. 获取NXP内核源码</font></h2><p>我们知道NXP有一款IMX6ULL EVK评估板，所以自然也会有自己维护的对应的内核，我们可以在这里下载：<a target="_blank" rel="noopener" href="https://github.com/nxp-imx/linux-imx/releases/tag/rel_imx_4.1.15_2.1.0_ga">Release rel_imx_4.1.15_2.1.0_ga: MLK-14762 ARM: dts: imx6sll-evk: correct gpio pin for lcd power control · nxp-imx&#x2F;linux-imx (github.com)</a></p>
<img data-src="https://fanhua-picture.oss-cn-hangzhou.aliyuncs.com/01%E5%B5%8C%E5%85%A5%E5%BC%8F%E5%BC%80%E5%8F%91/02IMX6ULL%E5%B9%B3%E5%8F%B0/LV05-uboot%E4%B8%8E%E5%86%85%E6%A0%B8/LV05-02-linux%E5%86%85%E6%A0%B8-02-NXP%E6%8F%90%E4%BE%9B%E7%9A%84%E5%86%85%E6%A0%B8/img/image-20230802191729343.png" alt="image-20230802191729343" style="zoom: 50%;" />

<p>我们下载后就可以得到对应的压缩包：</p>
<img data-src="https://fanhua-picture.oss-cn-hangzhou.aliyuncs.com/01%E5%B5%8C%E5%85%A5%E5%BC%8F%E5%BC%80%E5%8F%91/02IMX6ULL%E5%B9%B3%E5%8F%B0/LV05-uboot%E4%B8%8E%E5%86%85%E6%A0%B8/LV05-02-linux%E5%86%85%E6%A0%B8-02-NXP%E6%8F%90%E4%BE%9B%E7%9A%84%E5%86%85%E6%A0%B8/img/image-20230802202827283.png" alt="image-20230802202827283" style="zoom:50%;" />

<h2 id="2-有那些文件？"><a href="#2-有那些文件？" class="headerlink" title="2. 有那些文件？"></a><font size=3>2. 有那些文件？</font></h2><p>我们解压看一下都有哪些文件：</p>
<img data-src="https://fanhua-picture.oss-cn-hangzhou.aliyuncs.com/01%E5%B5%8C%E5%85%A5%E5%BC%8F%E5%BC%80%E5%8F%91/02IMX6ULL%E5%B9%B3%E5%8F%B0/LV05-uboot%E4%B8%8E%E5%86%85%E6%A0%B8/LV05-02-linux%E5%86%85%E6%A0%B8-02-NXP%E6%8F%90%E4%BE%9B%E7%9A%84%E5%86%85%E6%A0%B8/img/image-20230802203038633.png" alt="image-20230802203038633" style="zoom:50%;" />

<p>这里先不介绍这些目录和文件都是什么，因为还有些文件要编译后才能生成。</p>
<h2 id="3-编译NXP的linux内核源码"><a href="#3-编译NXP的linux内核源码" class="headerlink" title="3. 编译NXP的linux内核源码"></a><font size=3>3. 编译NXP的linux内核源码</font></h2><h3 id="3-1-编译命令"><a href="#3-1-编译命令" class="headerlink" title="3.1 编译命令"></a><font size=3>3.1 编译命令</font></h3><p>我们在linux内核源码目录执行以下命令（也可以创建一个脚本，写进去，方便一些），NXP官方的IMX6ULL EVK评估板对应的默认配置文件为imx_v7_defconfig，所以有：</p>
<figure class="highlight shell"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br></pre></td><td class="code"><pre><span class="line">make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- distclean</span><br><span class="line">make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- imx_v7_defconfig</span><br><span class="line">make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- menuconfig</span><br><span class="line">make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- all -j16</span><br></pre></td></tr></table></figure>

<p>编译的时候，在执行menuconfig的时候，会弹出 Linux 图形配置界面 :</p>
<img data-src="https://fanhua-picture.oss-cn-hangzhou.aliyuncs.com/01%E5%B5%8C%E5%85%A5%E5%BC%8F%E5%BC%80%E5%8F%91/02IMX6ULL%E5%B9%B3%E5%8F%B0/LV05-uboot%E4%B8%8E%E5%86%85%E6%A0%B8/LV05-02-linux%E5%86%85%E6%A0%B8-02-NXP%E6%8F%90%E4%BE%9B%E7%9A%84%E5%86%85%E6%A0%B8/img/image-20230802203358667.png" alt="image-20230802203358667" style="zoom:50%;" />

<p>这里暂时不管，直接按两下Esc退出即可，然后就开始编译啦，但是若是首次编译的话，应该会有报错。后边报错处理完后编译成功会有以下信息：</p>
<img data-src="https://fanhua-picture.oss-cn-hangzhou.aliyuncs.com/01%E5%B5%8C%E5%85%A5%E5%BC%8F%E5%BC%80%E5%8F%91/02IMX6ULL%E5%B9%B3%E5%8F%B0/LV05-uboot%E4%B8%8E%E5%86%85%E6%A0%B8/LV05-02-linux%E5%86%85%E6%A0%B8-02-NXP%E6%8F%90%E4%BE%9B%E7%9A%84%E5%86%85%E6%A0%B8/img/image-20230802220917207.png" alt="image-20230802220917207" style="zoom:50%;" />

<h3 id="3-2-报错处理"><a href="#3-2-报错处理" class="headerlink" title="3.2 报错处理"></a><font size=3>3.2 报错处理</font></h3><h4 id="3-2-1-gcc版本过高问题"><a href="#3-2-1-gcc版本过高问题" class="headerlink" title="3.2.1 gcc版本过高问题"></a><font size=3>3.2.1 gcc版本过高问题</font></h4><p>不出意外的话，最先报的肯定是这个问题：</p>
<img data-src="https://fanhua-picture.oss-cn-hangzhou.aliyuncs.com/01%E5%B5%8C%E5%85%A5%E5%BC%8F%E5%BC%80%E5%8F%91/02IMX6ULL%E5%B9%B3%E5%8F%B0/LV05-uboot%E4%B8%8E%E5%86%85%E6%A0%B8/LV05-02-linux%E5%86%85%E6%A0%B8-02-NXP%E6%8F%90%E4%BE%9B%E7%9A%84%E5%86%85%E6%A0%B8/img/image-20230802213514900.png" alt="image-20230802213514900" style="zoom:50%;" />

<p>经查询，好像是gcc编译器10及以上版本才会出现问题，可以修改linux内核源码文件，我们在linux内核源码中scripts&#x2F;dtc目录下的dtc-lexer.lex.c_shipped文件中找到 YYLTYPE yyloc 这一行：</p>
<img data-src="https://fanhua-picture.oss-cn-hangzhou.aliyuncs.com/01%E5%B5%8C%E5%85%A5%E5%BC%8F%E5%BC%80%E5%8F%91/02IMX6ULL%E5%B9%B3%E5%8F%B0/LV05-uboot%E4%B8%8E%E5%86%85%E6%A0%B8/LV05-02-linux%E5%86%85%E6%A0%B8-02-NXP%E6%8F%90%E4%BE%9B%E7%9A%84%E5%86%85%E6%A0%B8/img/image-20230802215832306.png" alt="image-20230802215832306" style="zoom:50%;" />

<p>可以看到在640行，我们在这个之前面加上extern ：</p>
<img data-src="https://fanhua-picture.oss-cn-hangzhou.aliyuncs.com/01%E5%B5%8C%E5%85%A5%E5%BC%8F%E5%BC%80%E5%8F%91/02IMX6ULL%E5%B9%B3%E5%8F%B0/LV05-uboot%E4%B8%8E%E5%86%85%E6%A0%B8/LV05-02-linux%E5%86%85%E6%A0%B8-02-NXP%E6%8F%90%E4%BE%9B%E7%9A%84%E5%86%85%E6%A0%B8/img/image-20230802215922688.png" alt="image-20230802215922688" style="zoom:50%;" />

<p>然后就可以正常编译啦。</p>
<h4 id="3-2-2-缺少lzop库"><a href="#3-2-2-缺少lzop库" class="headerlink" title="3.2.2 缺少lzop库"></a><font size=3>3.2.2 缺少lzop库</font></h4><p>编译过程中可能会有下边的报错提示：</p>
<img data-src="https://fanhua-picture.oss-cn-hangzhou.aliyuncs.com/01%E5%B5%8C%E5%85%A5%E5%BC%8F%E5%BC%80%E5%8F%91/02IMX6ULL%E5%B9%B3%E5%8F%B0/LV05-uboot%E4%B8%8E%E5%86%85%E6%A0%B8/LV05-02-linux%E5%86%85%E6%A0%B8-02-NXP%E6%8F%90%E4%BE%9B%E7%9A%84%E5%86%85%E6%A0%B8/img/image-20230802215304599.png" alt="image-20230802215304599" style="zoom: 60%;" />

<p>怎么解决？我们需要安装一下lzop库：</p>
<figure class="highlight shell"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">sudo apt-get install lzop</span><br></pre></td></tr></table></figure>

<p>然后再编译应该就可以了。</p>
<h1 id="二、工程目录分析"><a href="#二、工程目录分析" class="headerlink" title="二、工程目录分析"></a><font size=3>二、工程目录分析</font></h1><h2 id="1-概述"><a href="#1-概述" class="headerlink" title="1. 概述"></a><font size=3>1. 概述</font></h2><p>我们编译完的linux内核源码的顶层目录将会有以下文件及目录：</p>
<img data-src="https://fanhua-picture.oss-cn-hangzhou.aliyuncs.com/01%E5%B5%8C%E5%85%A5%E5%BC%8F%E5%BC%80%E5%8F%91/02IMX6ULL%E5%B9%B3%E5%8F%B0/LV05-uboot%E4%B8%8E%E5%86%85%E6%A0%B8/LV05-02-linux%E5%86%85%E6%A0%B8-02-NXP%E6%8F%90%E4%BE%9B%E7%9A%84%E5%86%85%E6%A0%B8/img/image-20230802220951094.png" alt="image-20230802220951094" style="zoom:50%;" />

<p>各个目录说明如下：</p>
<img data-src="https://fanhua-picture.oss-cn-hangzhou.aliyuncs.com/01%E5%B5%8C%E5%85%A5%E5%BC%8F%E5%BC%80%E5%8F%91/02IMX6ULL%E5%B9%B3%E5%8F%B0/LV05-uboot%E4%B8%8E%E5%86%85%E6%A0%B8/LV05-02-linux%E5%86%85%E6%A0%B8-02-NXP%E6%8F%90%E4%BE%9B%E7%9A%84%E5%86%85%E6%A0%B8/img/image-20230802221029033.png" alt="image-20230802221029033" style="zoom:50%;" />

<h2 id="2-重要目录与文件"><a href="#2-重要目录与文件" class="headerlink" title="2. 重要目录与文件"></a><font size=3>2. 重要目录与文件</font></h2><h3 id="2-1-arch-目录"><a href="#2-1-arch-目录" class="headerlink" title="2.1 arch 目录  "></a><font size=3>2.1 arch 目录  </font></h3><p>这个目录是和架构有关的目录，比如 arm、 arm64、 avr32、 x86 等等架构。每种架构都对应一个目录，在这些目录中又有很多子目录，比如 boot、 common、 configs 等等 ：</p>
<img data-src="https://fanhua-picture.oss-cn-hangzhou.aliyuncs.com/01%E5%B5%8C%E5%85%A5%E5%BC%8F%E5%BC%80%E5%8F%91/02IMX6ULL%E5%B9%B3%E5%8F%B0/LV05-uboot%E4%B8%8E%E5%86%85%E6%A0%B8/LV05-02-linux%E5%86%85%E6%A0%B8-02-NXP%E6%8F%90%E4%BE%9B%E7%9A%84%E5%86%85%E6%A0%B8/img/image-20230802221150464.png" alt="image-20230802221150464" style="zoom:50%;" />

<p>以 arch&#x2F;arm 为例，其子目录如图：</p>
<img data-src="https://fanhua-picture.oss-cn-hangzhou.aliyuncs.com/01%E5%B5%8C%E5%85%A5%E5%BC%8F%E5%BC%80%E5%8F%91/02IMX6ULL%E5%B9%B3%E5%8F%B0/LV05-uboot%E4%B8%8E%E5%86%85%E6%A0%B8/LV05-02-linux%E5%86%85%E6%A0%B8-02-NXP%E6%8F%90%E4%BE%9B%E7%9A%84%E5%86%85%E6%A0%B8/img/image-20230802221301088.png" alt="image-20230802221301088" style="zoom:50%;" />

<p>这些子目录用于控制系统引导、系统调用、动态调频、主频设置等。 arch&#x2F;arm&#x2F;configs 目录是不同平台的默认配置文件： xxx_defconfig，如图</p>
<img data-src="https://fanhua-picture.oss-cn-hangzhou.aliyuncs.com/01%E5%B5%8C%E5%85%A5%E5%BC%8F%E5%BC%80%E5%8F%91/02IMX6ULL%E5%B9%B3%E5%8F%B0/LV05-uboot%E4%B8%8E%E5%86%85%E6%A0%B8/LV05-02-linux%E5%86%85%E6%A0%B8-02-NXP%E6%8F%90%E4%BE%9B%E7%9A%84%E5%86%85%E6%A0%B8/img/image-20230802221358652.png" alt="image-20230802221358652" style="zoom:50%;" />

<p>在 arch&#x2F;arm&#x2F;configs 中就包含有NXP官方的 IMX6ULL EVK 评估板的默认配置文件： imx_v7_defconfig，执行“make imx_v7_defconfig”即可完成配置。 arch&#x2F;arm&#x2F;boot&#x2F;dts 目录里面是对应开发平台的设备树文件 :</p>
<img data-src="https://fanhua-picture.oss-cn-hangzhou.aliyuncs.com/01%E5%B5%8C%E5%85%A5%E5%BC%8F%E5%BC%80%E5%8F%91/02IMX6ULL%E5%B9%B3%E5%8F%B0/LV05-uboot%E4%B8%8E%E5%86%85%E6%A0%B8/LV05-02-linux%E5%86%85%E6%A0%B8-02-NXP%E6%8F%90%E4%BE%9B%E7%9A%84%E5%86%85%E6%A0%B8/img/image-20230802221632663.png" alt="image-20230802221632663" style="zoom:50%;" />

<p>arch&#x2F;arm&#x2F;boot 目录下会保存编译出来的 Image 和 zImage 镜像文件，而 zImage 就是我们要用的 linux 镜像文件。</p>
<p>arch&#x2F;arm&#x2F;mach-xxx 目录分别为相应平台的驱动和初始化文件，比如 mach-imx 目录里面就是 I.MX 系列 CPU 的驱动和初始化文件。  </p>
<h3 id="3-2-block-目录"><a href="#3-2-block-目录" class="headerlink" title="3.2 block 目录  "></a><font size=3>3.2 block 目录  </font></h3><p>block 是 Linux 下块设备目录，像 SD 卡、 EMMC、 NAND、硬盘等存储设备就属于块设备，block 目录中存放着管理块设备的相关文件。  </p>
<h3 id="2-3-crypto-目录"><a href="#2-3-crypto-目录" class="headerlink" title="2.3 crypto 目录"></a><font size=3>2.3 crypto 目录</font></h3><p>crypto 目录里面存放着加密文件，比如常见的 crc、 crc32、 md4、 md5、 hash 等加密算法。  </p>
<h3 id="2-4-Documentation-目录"><a href="#2-4-Documentation-目录" class="headerlink" title="2.4 Documentation 目录  "></a><font size=3>2.4 Documentation 目录  </font></h3><p>此目录里面存放着 Linux 相关的文档，如果要想了解 Linux 某个功能模块或驱动架构的功能，就可以在 Documentation 目录中查找有没有对应的文档。  </p>
<h3 id="2-5-drivers-目录"><a href="#2-5-drivers-目录" class="headerlink" title="2.5 drivers 目录  "></a><font size=3>2.5 drivers 目录  </font></h3><p>驱动目录文件，此目录根据驱动类型的不同，分门别类进行整理，比如 drivers&#x2F;i2c 就是 I2C相关驱动目录， drivers&#x2F;gpio 就是 GPIO 相关的驱动目录，这是我们学习的重点。  </p>
<h3 id="2-6-firmware-目录"><a href="#2-6-firmware-目录" class="headerlink" title="2.6 firmware 目录  "></a><font size=3>2.6 firmware 目录  </font></h3><p>此目录用于存放固件。  </p>
<h3 id="2-7-fs-目录"><a href="#2-7-fs-目录" class="headerlink" title="2.7 fs 目录  "></a><font size=3>2.7 fs 目录  </font></h3><p>此目录存放文件系统，比如 fs&#x2F;ext2、 fs&#x2F;ext4、 fs&#x2F;f2fs 等，分别是 ext2、 ext4 和 f2fs 等文件系统。  </p>
<h2 id="3-VScode工程"><a href="#3-VScode工程" class="headerlink" title="3. VScode工程"></a><font size=3>3. VScode工程</font></h2><p>还和之前一样，创建一个VScode工程，方便管理工程，工程工作区文件内容如下：</p>
<figure class="highlight json"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br><span class="line">40</span><br><span class="line">41</span><br><span class="line">42</span><br><span class="line">43</span><br><span class="line">44</span><br><span class="line">45</span><br><span class="line">46</span><br><span class="line">47</span><br><span class="line">48</span><br><span class="line">49</span><br><span class="line">50</span><br><span class="line">51</span><br><span class="line">52</span><br><span class="line">53</span><br><span class="line">54</span><br><span class="line">55</span><br><span class="line">56</span><br><span class="line">57</span><br><span class="line">58</span><br><span class="line">59</span><br><span class="line">60</span><br><span class="line">61</span><br><span class="line">62</span><br><span class="line">63</span><br><span class="line">64</span><br><span class="line">65</span><br><span class="line">66</span><br><span class="line">67</span><br><span class="line">68</span><br><span class="line">69</span><br><span class="line">70</span><br><span class="line">71</span><br><span class="line">72</span><br><span class="line">73</span><br><span class="line">74</span><br><span class="line">75</span><br><span class="line">76</span><br><span class="line">77</span><br><span class="line">78</span><br><span class="line">79</span><br><span class="line">80</span><br><span class="line">81</span><br><span class="line">82</span><br><span class="line">83</span><br><span class="line">84</span><br><span class="line">85</span><br><span class="line">86</span><br><span class="line">87</span><br><span class="line">88</span><br><span class="line">89</span><br><span class="line">90</span><br><span class="line">91</span><br><span class="line">92</span><br><span class="line">93</span><br><span class="line">94</span><br><span class="line">95</span><br><span class="line">96</span><br><span class="line">97</span><br><span class="line">98</span><br><span class="line">99</span><br><span class="line">100</span><br><span class="line">101</span><br><span class="line">102</span><br><span class="line">103</span><br><span class="line">104</span><br><span class="line">105</span><br></pre></td><td class="code"><pre><span class="line"><span class="punctuation">&#123;</span></span><br><span class="line">	<span class="attr">&quot;folders&quot;</span><span class="punctuation">:</span> <span class="punctuation">[</span></span><br><span class="line">		<span class="punctuation">&#123;</span></span><br><span class="line">			<span class="attr">&quot;path&quot;</span><span class="punctuation">:</span> <span class="string">&quot;.&quot;</span></span><br><span class="line">		<span class="punctuation">&#125;</span></span><br><span class="line">	<span class="punctuation">]</span><span class="punctuation">,</span></span><br><span class="line">	<span class="attr">&quot;settings&quot;</span><span class="punctuation">:</span> <span class="punctuation">&#123;</span></span><br><span class="line">		<span class="comment">// 搜索时不想显示的文件可按以下格式屏蔽(为 true 时屏蔽)</span></span><br><span class="line">		<span class="attr">&quot;search.exclude&quot;</span><span class="punctuation">:</span> <span class="punctuation">&#123;</span></span><br><span class="line">			<span class="attr">&quot;**/node_modules&quot;</span><span class="punctuation">:</span> <span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;**/bower_components&quot;</span><span class="punctuation">:</span> <span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;**/*.o&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;**/*.su&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;**/*.cmd&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;Documentation&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">		</span><br><span class="line">			<span class="comment">/* 屏蔽不用的架构相关的文件 */</span></span><br><span class="line">			<span class="attr">&quot;arch/alpha&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;arch/arc&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;arch/arm64&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;arch/avr32&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;arch/[b-z]*&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;arch/arm/plat*&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;arch/arm/mach-[a-h]*&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;arch/arm/mach-[n-z]*&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;arch/arm/mach-i[n-z]*&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;arch/arm/mach-m[e-v]*&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;arch/arm/mach-k*&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;arch/arm/mach-l*&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">		</span><br><span class="line">			<span class="comment">/* 屏蔽排除不用的配置文件 */</span></span><br><span class="line">			<span class="attr">&quot;arch/arm/configs/[a-h]*&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;arch/arm/configs/[j-z]*&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;arch/arm/configs/imo*&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;arch/arm/configs/in*&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;arch/arm/configs/io*&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;arch/arm/configs/ix*&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="comment">/* 屏蔽掉不用的 DTB 文件 */</span></span><br><span class="line">			<span class="attr">&quot;arch/arm/boot/dts/[a-h]*&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;arch/arm/boot/dts/[k-z]*&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;arch/arm/boot/dts/in*&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;arch/arm/boot/dts/imx1*&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;arch/arm/boot/dts/imx7*&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;arch/arm/boot/dts/imx2*&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;arch/arm/boot/dts/imx3*&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;arch/arm/boot/dts/imx5*&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;arch/arm/boot/dts/imx6d*&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;arch/arm/boot/dts/imx6q*&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;arch/arm/boot/dts/imx6s*&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;arch/arm/boot/dts/imx6ul-*&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;arch/arm/boot/dts/imx6ull-9x9*&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;arch/arm/boot/dts/imx6ull-14x14-ddr*&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">		<span class="punctuation">&#125;</span><span class="punctuation">,</span></span><br><span class="line">		<span class="comment">// 不想在工作区显示的文件可按以下格式屏蔽(为 true 时屏蔽)</span></span><br><span class="line">		<span class="attr">&quot;files.exclude&quot;</span><span class="punctuation">:</span> <span class="punctuation">&#123;</span></span><br><span class="line">			<span class="attr">&quot;**/.git&quot;</span><span class="punctuation">:</span> <span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;**/.svn&quot;</span><span class="punctuation">:</span> <span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;**/.hg&quot;</span><span class="punctuation">:</span> <span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;**/CVS&quot;</span><span class="punctuation">:</span> <span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;**/.DS_Store&quot;</span><span class="punctuation">:</span> <span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;**/*.o&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;**/*.su&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;**/*.cmd&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;Documentation&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">		</span><br><span class="line">			<span class="comment">/* 屏蔽不用的架构相关的文件 */</span></span><br><span class="line">			<span class="attr">&quot;arch/alpha&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;arch/arc&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;arch/arm64&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;arch/avr32&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;arch/[b-z]*&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;arch/arm/plat*&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;arch/arm/mach-[a-h]*&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;arch/arm/mach-[n-z]*&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;arch/arm/mach-i[n-z]*&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;arch/arm/mach-m[e-v]*&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;arch/arm/mach-k*&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;arch/arm/mach-l*&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">		</span><br><span class="line">			<span class="comment">/* 屏蔽排除不用的配置文件 */</span></span><br><span class="line">			<span class="attr">&quot;arch/arm/configs/[a-h]*&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;arch/arm/configs/[j-z]*&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;arch/arm/configs/imo*&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;arch/arm/configs/in*&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;arch/arm/configs/io*&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;arch/arm/configs/ix*&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">		</span><br><span class="line">			<span class="comment">/* 屏蔽掉不用的 DTB 文件 */</span></span><br><span class="line">			<span class="attr">&quot;arch/arm/boot/dts/[a-h]*&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;arch/arm/boot/dts/[k-z]*&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;arch/arm/boot/dts/in*&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;arch/arm/boot/dts/imx1*&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;arch/arm/boot/dts/imx7*&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;arch/arm/boot/dts/imx2*&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;arch/arm/boot/dts/imx3*&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;arch/arm/boot/dts/imx5*&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;arch/arm/boot/dts/imx6d*&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;arch/arm/boot/dts/imx6q*&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;arch/arm/boot/dts/imx6s*&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;arch/arm/boot/dts/imx6ul-*&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;arch/arm/boot/dts/imx6ull-9x9*&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">			<span class="attr">&quot;arch/arm/boot/dts/imx6ull-14x14-ddr*&quot;</span><span class="punctuation">:</span><span class="literal"><span class="keyword">true</span></span><span class="punctuation">,</span></span><br><span class="line">		<span class="punctuation">&#125;</span><span class="punctuation">,</span></span><br><span class="line">	<span class="punctuation">&#125;</span></span><br><span class="line"><span class="punctuation">&#125;</span></span><br></pre></td></tr></table></figure>

<h1 id="三、NXP内核和设备树启动测试"><a href="#三、NXP内核和设备树启动测试" class="headerlink" title="三、NXP内核和设备树启动测试"></a><font size=3>三、NXP内核和设备树启动测试</font></h1><p>上边我们编译完后，会的到下边两个文件：</p>
<img data-src="https://fanhua-picture.oss-cn-hangzhou.aliyuncs.com/01%E5%B5%8C%E5%85%A5%E5%BC%8F%E5%BC%80%E5%8F%91/02IMX6ULL%E5%B9%B3%E5%8F%B0/LV05-uboot%E4%B8%8E%E5%86%85%E6%A0%B8/LV05-02-linux%E5%86%85%E6%A0%B8-02-NXP%E6%8F%90%E4%BE%9B%E7%9A%84%E5%86%85%E6%A0%B8/img/image-20230802222948023.png" alt="image-20230802222948023" style="zoom:50%;" />

<p>他们位于linux内核源码的这两个目录中：</p>
<figure class="highlight shell"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line">arch/arm/boot/zImage</span><br><span class="line">arch/arm/boot/dts/imx6ull-14x14-evk.dtb</span><br></pre></td></tr></table></figure>

<p>我们按照之前的方式，将这两个文件放到tftp目录下：</p>
<figure class="highlight shell"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line">cp arch/arm/boot/zImage ~/3tftp/imx6ull/</span><br><span class="line">cp arch/arm/boot/dts/imx6ull-14x14-evk.dtb ~/3tftp/imx6ull/</span><br></pre></td></tr></table></figure>

<img data-src="https://fanhua-picture.oss-cn-hangzhou.aliyuncs.com/01%E5%B5%8C%E5%85%A5%E5%BC%8F%E5%BC%80%E5%8F%91/02IMX6ULL%E5%B9%B3%E5%8F%B0/LV05-uboot%E4%B8%8E%E5%86%85%E6%A0%B8/LV05-02-linux%E5%86%85%E6%A0%B8-02-NXP%E6%8F%90%E4%BE%9B%E7%9A%84%E5%86%85%E6%A0%B8/img/image-20230802223238289.png" alt="image-20230802223238289" style="zoom:50%;" />

<p>由于设备树名字变了，所以我们还要修改一下uboot中的bootcmd参数：</p>
<figure class="highlight shell"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line">=&gt; setenv bootcmd &#x27;tftp 80800000 /imx6ull/zImage\;tftp 83000000 /imx6ull/imx6ull-14x14-evk.dtb\;bootz 80800000 - 83000000&#x27;</span><br><span class="line">=&gt; saveenv </span><br></pre></td></tr></table></figure>

<p>然后重启开发板即可，但是正常来讲由于我们的网口是跟evk板不同，所以linux内核可以起来，但是由于网口驱动异常，所以会卡在这里：</p>
<img data-src="https://fanhua-picture.oss-cn-hangzhou.aliyuncs.com/01%E5%B5%8C%E5%85%A5%E5%BC%8F%E5%BC%80%E5%8F%91/02IMX6ULL%E5%B9%B3%E5%8F%B0/LV05-uboot%E4%B8%8E%E5%86%85%E6%A0%B8/LV05-02-linux%E5%86%85%E6%A0%B8-02-NXP%E6%8F%90%E4%BE%9B%E7%9A%84%E5%86%85%E6%A0%B8/img/image-20230802223537239.png" alt="image-20230802223537239" style="zoom:50%;" />

<p>但是到这里其实我们的目的已经达到了，就是获取zImage和dtb设备树，我们知道怎么编译就可以了，后边就是学习内核、然后移植和开发啦。</p>

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    <p><span>文章标题:</span><a href="/post/9dbad8f0.html">LV05-02-linux内核-02-NXP提供的内核</a></p>
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            var t1 = Date.UTC(2017, 
                              5, 
                              19, 
                              0, 
                              0, 
                              0); //北京时间
            var t2 = Date.UTC(todayYear,todayMonth,todayDate,todayHour,todayMinute,todaySecond);
            var diff = t2-t1;
            var diffYears = Math.floor(diff/years);
            var diffDays = Math.floor((diff/days)-diffYears*365);
            var diffHours = Math.floor((diff-(diffYears*365+diffDays)*days)/hours);
            var diffMinutes = Math.floor((diff-(diffYears*365+diffDays)*days-diffHours*hours)/minutes);
            var diffSeconds = Math.floor((diff-(diffYears*365+diffDays)*days-diffHours*hours-diffMinutes*minutes)/seconds);
            document.getElementById("sitetime").innerHTML="已在这里 "+diffYears+" 年 "+diffDays+" 天 "+diffHours+" 小时 "+diffMinutes+" 分钟 "+diffSeconds+" 秒";
        }
        siteTime();
    </script>



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